Options
Title
Codierschema fuer einen ein zeitlich veraenderliches Graphikmodell darstellenden Datenstrom
Date Issued
2006
Author(s)
Kautzner, M.
Mueller, K.
Smolic, A.
Wiegand, T.
Patent No
102004049156
Abstract
Das Einfuehren einer weiteren Praediktionsstufe, naemlich einer Praediktion der Bewegungsvektoren bzw. der Praediktionsfehler der ersten Praediktionsstufe, erhoeht zwar zunaechst den Codier- bzw. Kompressions- und dementsprechend auch den Decodier- bzw. Dekompressionsaufwand, aber bei den meisten Graphikmodellsequenzen fuehrt aufgrund der Gleichfoermigkeit der Bewegung diese hier vorgeschlagene Praediktion zu einer im Verhaeltnis zum Aufwand erheblichen Verbesserung des Kompressionsgewinns.
DE1004049156 A UPAB: 20060523 NOVELTY - The device has an inter-coding section (24) for predicating prediction error vectors for a data section based on already received prediction vectors. A differentiator (30) compares the already received vectors and the predicted vectors to receive a predicted error vector difference. The cluster-imaging device, coding device and scaling-/quantization device are used to process the difference to receive a part of the coded data flow DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (A) a method for coding of data flow (B) a method for decoding of data flow (C) a computer program with a program code for implementing the method for coding of data flow. USE - For coding data flow representing a temporally variable graphics model e.g. three-dimensional (3D) computer graphic model, that is utilized in e.g. game, animation and virtual word applications, also in trick film production and innovated system, which consists of free view point-video (FVV) and 3D-video objects. ADVANTAGE - Increases the compression gain and saves the bit rate. Provides same or better quality with reduced bit rate.
Language
de
Patenprio
DE 102004049156 A: 20041008